@c7b:#7be7d7;
@c86a:#86a4e3;
@cfff:#fff;
@c99:#999999;
@cc:#CCFBFF;
@ef:#ef96c5;
.clear-float() {
    &::after{
        content: " ";
        width: 0;
        height: 0;
        clear: both;

    }
}